Geometry Global and Dunlopillo mattresses want you to bone a lot more than you are. So to help encourage your boning, they created a mattress with special sensors in it that would detect when your level of boning activity dropped off.
Leave it to coke to make a sugary ad featuring smiling babies. The credit for the song (or blame, depending on your mood) goes to writer Jesse Ridder and performed by Huib Koch, both of Ogilvy Amsterdam.
In a lot of parts of India, having a girl is considered a curse. A proper education isn't an afterthought-- it's not even considered. NGO's like Salaam Bombay Foundation have had their work cut out for them.
Here's a nice case study of some classic hoaxvertising, where a leaked film taken by a supposed woman from Rio, showed a "giant pigeon" that looked a lot like a Dodo. An animal that's been extinct since the seventeenth century.